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1 vote
Prove that 1 + cos 2A / sin 2A=CotA​

User Jomy
by
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1 Answer

6 votes

Answer:

I assume that there are parentheses missing from the question and that it should be

Prove that 1 + sin 2A + cos 2A ---------------------------------------------- = cot A

1+sin2A−cos 2A

Use sin 2 A= 2 sin A cos A and

cos 2 A = 1−2 sin 2 A and cos 2 A = 2 cos A−1

User Doblak
by
8.2k points

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